Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 11,282	$ 10,817	$ 5,762	$ 4,148
Other current assets	392,752	365,287
Total current assets	404,034	376,104
FIXED ASSETS, at cost	723,225	541,138
Less: Accumulated depreciation	(157,944)	(124,213)
Net fixed assets	565,281	416,925
GOODWILL	325,046	325,046
Other assets, net	266,068	285,822
Equity investees and other investments	549,235	326,947
TOTAL ASSETS	2,109,664	1,730,844	1,506,735
Current liabilities	312,651	249,428
Senior secured credit facility	500,000	409,300
7.875% senior unsecured notes (including unamortized premium of $895 and $0 in 2012 and 2011, respectively)	350,895	250,000
Deferred tax liabilities	13,810	12,549
Other liabilities	15,813	16,929
Total liabilities	1,193,169	938,206
Partners' capital	916,495	792,638
TOTAL LIABILITIES AND PARTNERS’ CAPITAL	2,109,664	1,730,844
Genesis Energy, L.P. (Parent and Co-Issuer)
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	10	3	1	2
Other current assets	745,589	597,966
Total current assets	745,599	597,969
Other assets, net	17,737	14,773
Investments in subsidiaries	1,006,415	841,725
TOTAL ASSETS	1,769,751	1,454,467
Current liabilities	2,361	2,529
Senior secured credit facility	500,000	409,300
7.875% senior unsecured notes (including unamortized premium of $895 and $0 in 2012 and 2011, respectively)	350,895	250,000
Total liabilities	853,256	661,829
Partners' capital	916,495	792,638
TOTAL LIABILITIES AND PARTNERS’ CAPITAL	1,769,751	1,454,467
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	11,214	9,182	5,082	3,884
Other current assets	367,837	341,131
Total current assets	379,051	350,313
FIXED ASSETS, at cost	617,519	444,262
Less: Accumulated depreciation	(144,882)	(114,655)
Net fixed assets	472,637	329,607
GOODWILL	325,046	325,046
Other assets, net	254,423	276,450
Equity investees and other investments	549,235	326,947
Investments in subsidiaries	102,707	96,303
TOTAL ASSETS	2,083,099	1,704,666
Current liabilities	1,048,937	835,013
Deferred tax liabilities	13,810	12,549
Other liabilities	13,044	14,673
Total liabilities	1,075,791	862,235
Partners' capital	1,007,308	842,431
TOTAL LIABILITIES AND PARTNERS’ CAPITAL	2,083,099	1,704,666
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	58	1,632	679	262
Other current assets	41,533	31,897
Total current assets	41,591	33,529
FIXED ASSETS, at cost	105,706	96,876
Less: Accumulated depreciation	(13,062)	(9,558)
Net fixed assets	92,644	87,318
Other assets, net	157,604	162,373
TOTAL ASSETS	291,839	283,220
Current liabilities	23,567	17,562
Other liabilities	166,282	169,842
Total liabilities	189,849	187,404
Partners' capital	101,990	95,816
TOTAL LIABILITIES AND PARTNERS’ CAPITAL	291,839	283,220
Eliminations
Condensed Financial Statements, Captions [Line Items]
Other current assets	(762,207)	(605,707)
Total current assets	(762,207)	(605,707)
Other assets, net	(163,696)	(167,774)
Investments in subsidiaries	(1,109,122)	(938,028)
TOTAL ASSETS	(2,035,025)	(1,711,509)
Current liabilities	(762,214)	(605,676)
Other liabilities	(163,513)	(167,586)
Total liabilities	(925,727)	(773,262)
Partners' capital	(1,109,298)	(938,247)
TOTAL LIABILITIES AND PARTNERS’ CAPITAL	$ (2,035,025)	$ (1,711,509)